I had this problem on my T61 Thinkpad. Updating to the pre-proposed kernel fixed this for me:
Linux lain 2.6.38-9-generic #43pre201104300903-Ubuntu SMP Sun May 1 07:42:42 UTC 2011 i686 i686 i386 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/775068 Title: [ThinkPad Edge 14] System randomly locks up and needs to be power- cycled -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
